How to forget something permanently?

[M.V.P.]

I saw someone's password to their facebook and I can not help but look at their stuff and I really wish I didn't see it. Is there anyway I can forget seeing that like some mind trick or something? Please help

[Bookman80]

Tell them you saw their password and recommend they change it. That will eliminate the temptation to do wrong.

[Strife and Discord]

Every time you think about trying to forget it, you bring it to mind and therefore defeat your purpose. Self-control is your only option here. Don't mess with other people's private information. End of story.

[Mac]

I know it sounds hard to believe, but the longer you just not think about it the more of a chance you will eventually forget. Try thinking about other things to keep occupied like work, school, goals, hobbies, etc. also I heard the average person has to think about something for at least 7 seconds to register it as a memory. Something to keep in mind.